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<!-- received="Sat Feb 27 06:41:13 1999 PST" -->
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<!-- sent="Sat, 27 Feb 1999 15:40:15 +0100 (CET)" -->
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<!-- name="Georg Huettenegger" -->
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<!-- email="georg@mondoshawan.unix.cslab.tuwien.ac.at" -->
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<!-- subject="Re: horizontal stripes in your image" -->
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<!-- inreplyto="36D6E8F8.AA5@maths.nott.ac.uk" -->
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<title>sane-devel: Re: horizontal stripes in your image</title>
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<h1>Re: horizontal stripes in your image</h1>
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<b>Georg Huettenegger</b> (<a href="mailto:georg@mondoshawan.unix.cslab.tuwien.ac.at"><i>georg@mondoshawan.unix.cslab.tuwien.ac.at</i></a>)<br>
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<i>Sat, 27 Feb 1999 15:40:15 +0100 (CET)</i>
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<p>
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<li> <b>Next message:</b> <a href="0200.html">Petter Reinholdtsen: "Re: CVS Branch fails to compile with egcs"</a>
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<li> <b>Previous message:</b> <a href="0198.html">Petter Reinholdtsen: "Re: Unofficial CVS branch relative to v1.00"</a>
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<i>> Georg Huettenegger wrote:</i><br>
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<i>> </i><br>
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<i>> > > recently I posted a problem with my mustek 12000 sp connected to an adaptec</i><br>
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<i>> > > 1505. In each scanned image I noticed horizontal stripes. First I thought</i><br>
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<i>> > > it's a problem of the beta-version of sane for musteks, but in fact</i><br>
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<i>> > > this is a problem of my scsi-adapter. The solution is, that the correct</i><br>
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<i>> > > scsi-parameters (in my system lilo-parameters) should sound like the following:</i><br>
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<i>> > ></i><br>
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<i>> > > - disconnect: no</i><br>
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<i>> > > - init_sync: no</i><br>
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<i>> > ></i><br>
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<i>> </i><br>
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<i>> > Because it seems that other users have similar problems I would like to</i><br>
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<i>> > ask what could help if the above settings do not help. I have a Symbios</i><br>
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<i>> > Logic 53c810A which works great but the stripes wont go even if I do as</i><br>
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<i>> > recommended above. Only scanning with backtracking turned on helps (but</i><br>
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<i>> > needs 2-3x times longer).</i><br>
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<i>> </i><br>
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<i>> These problems probably refer to completely different scanners!</i><br>
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<i>> The newer 12000SP (denoted by ScanExpress) and the older one</i><br>
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<i>> (MFS-12000SP) have nothing to do with each other. For the SE</i><br>
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<i>> the backtracking switch is simply ignored because the scanner</i><br>
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<i>> doesn't support it. So the second problem report refers to MFS,</i><br>
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<i>> and the first to SE, I guess.</i><br>
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Well you are wright about this. I wrote my mail in a bit of a hurry (with<br>
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even poorer english than normal). I have a Mustek Paragon 600 II CD<br>
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(MFC-06000CZ v2.03) connected to a Symbios Logic 810A and the problem<br>
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occured with the kernel versions 2.0.33/34/35/36, 2.2.1/2. The Zip-drive<br>
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and my Yamaha CRW-4260 also connected to the same SCSI-controller work<br>
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perfectly so my SCSI-bus should be completely working and as I said<br>
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disabling synchronous transfer (which is not enforced by the 8xx driver<br>
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normally) and disconnection (although when scanning only the scanner<br>
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was active on the SCSI-bus) did not help.<br>
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I had the same problem with an Adaptec AVA-1505 but I replaced this<br>
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controller and did not try different settings when I used the controller.<br>
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Therefore I suspect that the problem may be in the 8xx driver of the Linux<br>
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kernel.<br>
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<p>
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<i>> I've got an Adaptec aha1505 and a SE 12000SP but enabling disconnect</i><br>
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<i>> doesn't do any harm for me.</i><br>
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You mean it does not help?<br>
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<p>
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cheers,<br>
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Georg Huettenegger<br>
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<p>
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<p>
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<pre>
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--
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</pre>
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<li> <b>Next message:</b> <a href="0200.html">Petter Reinholdtsen: "Re: CVS Branch fails to compile with egcs"</a>
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